Region
Europe, Eastern
Europe, Eastern --
19
Former Soviet republics
5
Former Soviet republics --
4
Russia (Federation)
2
Russia (Federation) --
2
Asia, Central
1
Asia, Central --
1
Central Europe
1
China
1
China --
1
Developing countries --
1
East Asia
1
East Asia --
1
Europe, Central
1
Europe, Central --
1
Former Soviet Republics
1
Poland
1
Poland --
1
Soviet Union
1
Soviet Union --
1